UtilUp

DNS tools

Everything related to DNS records, WHOIS and domain checks.

DNS Health Check – Analyze DNS health and configuration issues. Check for common DNS problems and record validation.
DNS Lookup – Lookup DNS records instantly. Query A, AAAA, MX, TXT, CNAME, NS, SOA and more for any domain name.
Reverse DNS Lookup – Perform reverse DNS lookup to find the hostname or domain name associated with an IP address.
SPF / DMARC Checker – Check SPF, DMARC, and DKIM email authentication records. Verify email security and deliverability.
WHOIS Lookup – Get WHOIS domain information including registrar, owner, registration date, expiration date, and nameservers.

HTTP tools

Inspect HTTP status codes, headers, redirects and performance.

CORS Checker – Check CORS headers and cross-origin resource sharing configuration for any URL or API endpoint.
Favicon Grabber – Extract and preview favicons from any website. Find all icon sizes and formats available.
HTTP Headers Viewer – View all HTTP response headers for any website. Inspect server headers, cache control, and content type.
HTTP Status Checker – Check HTTP status codes for any URL. Verify server response codes, headers, and response time instantly.
Meta Tags Preview – Preview meta tags, Open Graph, and Twitter Card data. See how pages appear when shared on social media.
Redirect & Canonical Audit – Audit redirects, canonical URLs, and robots directives. SEO tool for checking page configurations.
Redirect Checker – Trace HTTP redirect chains and analyze all redirects. Check 301, 302, 307, 308 redirects and response codes.
Robots & Noindex Checker – Check robots meta tags and X-Robots-Tag headers. Verify if pages are set to noindex or nofollow.
SSL Certificate Checker – Check SSL certificate details and expiration dates. Verify HTTPS certificate issuer and validity.
Security Headers Checker – Analyze HTTP security headers. Check HSTS, CSP, X-Frame-Options, and other security configurations.
Sitemap Explorer – Discover and analyze XML sitemaps. View all URLs listed in website sitemaps from robots.txt.
TTFB Checker – Measure Time to First Byte. Analyze DNS lookup, TCP connection, SSL handshake, and server response times.
User-Agent Parser – Parse user agent strings to identify browser, OS, device type, architecture, and bot detection details.
robots.txt Viewer – View and analyze robots.txt files. Check crawl rules, sitemaps, and bot directives for any website.

JSON tools

Formatting, validation and conversion of JSON data.

JSON Diff – Compare two JSON files and see differences. Visual JSON comparison tool to detect changes between objects.
JSON Formatter & Validator – Format and validate JSON online. Beautify minified JSON with proper indentation and syntax highlighting.
JSON Minifier – Minify JSON by removing whitespace and line breaks. Compress JSON for production and reduce file size.
JSON ⇄ CSV Converter – Convert JSON to CSV and CSV to JSON format. Transform data between spreadsheet and API formats.
JSON ⇄ YAML Converter – Convert JSON to YAML and YAML to JSON instantly. Free bidirectional data format converter tool.
JWT Decoder – Decode JWT tokens online. View header, payload, and claims from JSON Web Tokens without verification.

Text & encoding tools

Encode, decode and transform plain text.

Base64 Encoder / Decoder – Encode text to Base64 or decode Base64 to text. Fast and free Base64 conversion tool.
Case Converter – Convert text case instantly. Transform to lowercase, UPPERCASE, Title Case, or Sentence case online.
HTML Entities Encoder / Decoder – Convert HTML entities to characters and vice versa. Encode/decode special HTML characters safely.
Lorem Ipsum Generator – Generate Lorem Ipsum placeholder text. Create dummy text with custom paragraph and word counts.
Regex Tester (PHP) – Test PHP regular expressions online. Match patterns, see results, and debug regex in real-time.
Slug Generator – Generate URL-friendly slugs from text. Create SEO-optimized slugs for URLs, filenames, and permalinks.
Text Cleaner – Clean and format text by removing extra spaces, blank lines, and normalizing line endings.
Text Diff – Compare two texts and highlight differences. See additions, deletions, and changes line-by-line.
URL Encoder / Decoder – Encode and decode URLs. Convert special characters to percent-encoded format for safe URL usage.
Word / Character Counter – Count words, characters, sentences, and paragraphs. Estimate reading time for any text instantly.

Dev tools

Helpers for HTML, CSS and JavaScript code.

Base Converter – Convert numbers between binary, octal, decimal, and hexadecimal bases instantly.
CSS Minifier – Minify CSS code by removing comments and whitespace. Compress CSS files to reduce load times.
Email Header Analyzer – Parse email headers to trace message path. Analyze sender, recipient, routing, and authentication.
HTML Formatter – Format and beautify HTML code. Auto-indent HTML with proper structure and syntax formatting.
HTML ⇄ Markdown Converter – Convert HTML to Markdown and Markdown to HTML. Transform between formats for content editing.
Hash Generator – Generate MD5, SHA-1, SHA-256, and SHA-512 hashes. Create cryptographic hashes for text and files.
JS Minifier – Minify JavaScript code by removing comments and unnecessary whitespace for smaller file sizes.
Password Generator – Generate strong random passwords. Create secure passwords with custom length and character options.
Random Number Generator – Generate random numbers within a range. Create random integers between minimum and maximum values.
Unit Converter – Convert between units of length, weight, temperature, volume, and more measurement types.

Image tools

Tools for working with images and graphics.

Image Compressor – Compress images online to reduce file size. Optimize JPEG, PNG, and other formats without quality loss.
Image EXIF Viewer – View EXIF metadata from photos. Extract camera settings, GPS location, date, and image properties.
Image Resizer – Resize images online by width and height. Scale images while maintaining aspect ratio and quality.
Image to PDF – Convert images to PDF documents. Combine multiple images into a single PDF file instantly.
Image ⇄ WebP Converter – Convert images to WebP format and back. Reduce image file sizes with modern WebP compression.

PDF tools

Utilities for inspecting and manipulating PDF documents.

PDF Info / Text Extractor – Extract text and metadata from PDF files. View PDF properties, author, title, and page count.
PDF Merge – Merge multiple PDF files into one. Combine PDFs online in the order you choose.
PDF Split – Split PDF files into multiple documents. Extract pages or divide PDF into separate files.

Color & UI tools

Helpers for designers and frontend developers.

Box-Shadow Generator – Generate CSS box-shadow code visually. Create and customize shadow effects with live preview.
CSS Gradient Generator – Create CSS gradients visually. Generate linear and radial gradient code for modern web designs.
Color Converter – Convert HEX to RGB, HSL, and other color formats. Preview colors and get conversion values instantly.
Contrast Checker – Check color contrast ratio for WCAG accessibility compliance. Verify text readability on backgrounds.

Time & ID tools

Timestamps, UUIDs and time zone helpers.

Business Hours Converter – Convert business hours between time zones. Schedule operations across different geographic locations.
Cron Expression Explainer – Understand cron expressions in plain English. See when cron jobs will run with next execution times.
Time Zone Converter – Convert time between time zones worldwide. Schedule meetings across different time zones easily.
UUID Generator – Generate random UUID v4 identifiers. Create universally unique identifiers for databases and APIs.
Unix Timestamp Converter – Convert Unix timestamp to date and time. Transform epoch time to human-readable format instantly.

US helpers

Tools tailored to common US workflows.

12h ⇄ 24h Time Converter – Convert between 12-hour (AM/PM) and 24-hour military time format quickly and easily.
Date Format Converter – Convert dates between US (MM/DD/YYYY) and international (DD.MM.YYYY, YYYY-MM-DD) formats easily.
Fax Cover Sheet Generator – Create professional fax cover sheets online. Generate printable fax cover pages instantly.
IRS Tax Deadline Checker – Check IRS tax deadlines for any year. View filing dates, extension deadlines, and quarterly estimated tax due dates.
Salary → Hourly Rate – Calculate hourly rate from annual salary. Estimate your hourly wage based on work hours per week.
Tip Calculator – Calculate tips and split bills easily. Determine tip amount and total per person for any bill.
US Holidays Checker – Check US federal holidays by year or date. View all official US government holidays and dates.
US Inflation Calculator – Calculate the value of money over time using historical US CPI data. See how inflation affects purchasing power from 1913 to today.
US Paycheck Calculator – Estimate your net pay after federal and state taxes, Social Security, and Medicare. Free US paycheck calculator.
US Sales Tax Calculator – Calculate US sales tax by state. Get accurate state tax rates and compute total cost for any purchase amount.
US State Abbreviation Helper – Convert US state names to abbreviations and vice versa. Quick lookup for all 50 state codes.
US Time Zone Helper – Convert time across US time zones. See current time in Eastern, Central, Mountain, and Pacific zones.
ZIP Code → State Lookup – Find which US state a ZIP code belongs to. Lookup state information from postal codes.

Minecraft tools

Utilities for Minecraft server administration and customization.

Minecraft MOTD Generator – Create and preview Minecraft server MOTD with colors and formatting. Generate MOTD with formatting codes.
Minecraft Server Status – Check Minecraft server status, online players, version, and MOTD. Query any Java or Bedrock server.